Patent · US Expired

Motor control apparatus

US6984948B2 · kind B2 · utility

57Cited by
7References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 10, 2003
Grant dateJan 10, 2006
Priority date
Expiry dateDec 10, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02M1/0085
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

In a motor control apparatus of the present invention, a control section which receives an input voltage to an inverter circuit, a motor current flowing to a brushless motor and a motor current command value indicating the value of a current required to flow to the inverter circuit, and controls the inverter circuit by maintaining a phase of the voltage applied to the brushless motor when the value of the input voltage to the inverter circuit is smaller than the value of a voltage required to be applied to the brushless motor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.